| Rank | Release
| Genre
| Budget
| Running Time
| Gross | Theaters | Total Gross | Release Date | Distributor
| Estimated
|
|---|
| 1 | Girls Trip | - | - | - | $883,716 | 72 | $1,546,796 | Aug 4 | United International Pictures | false |
| 2 | Baby Driver | - | - | - | $680,513 | 94 | $732,731 | Aug 4 | Sony Pictures Releasing | false |
| 3 | Dunkirk | - | - | - | $597,401 | 71 | $825,513 | Jul 28 | Times Media Films | false |
| 4 | The Hitman's Bodyguard | - | - | - | $506,251 | 97 | $930,115 | Aug 18 | Times Media Films | false |
| 5 | Son of Bigfoot | - | - | - | $424,945 | 99 | $738,710 | Aug 11 | Ster-Kinekor Pictures | false |
| 6 | Despicable Me 3 | - | - | - | $394,364 | 120 | $3,482,617 | Jun 30 | United International Pictures | false |
| 7 | Spider-Man: Homecoming | - | - | - | $336,026 | 120 | $2,308,622 | Jul 7 | Sony Pictures Releasing | false |
| 8 | Captain Underpants: The First Epic Movie | - | - | - | $218,187 | 99 | $482,734 | Jul 21 | 20th Century Fox International | false |
| 9 | Atomic Blonde | - | - | - | $208,962 | 107 | $400,420 | Aug 18 | Ster-Kinekor Pictures | false |
| 10 | Krotoa | - | - | - | $190,479 | 35 | $198,311 | Aug 4 | Ster-Kinekor Pictures | false |
| 11 | Annabelle: Creation | - | - | - | $166,461 | 31 | $320,481 | Aug 18 | Times Media Films | false |
| 12 | War for the Planet of the Apes | - | - | - | $153,397 | 134 | $724,860 | Jul 14 | 20th Century Fox International | false |
| 13 | Valerian and the City of a Thousand Planets | - | - | - | $137,096 | 98 | $581,028 | Jul 21 | Times Media Films | false |
| 14 | Snatched | - | - | - | $108,701 | 51 | $108,701 | Aug 11 | Times Media Films | false |
| 15 | Baywatch | - | - | - | $102,584 | 94 | $1,578,107 | Jun 2 | Paramount Pictures International | false |
| 16 | Viceroy's House | - | - | - | $77,971 | 28 | $110,553 | Jul 28 | United International Pictures | false |
| 17 | Transformers: The Last Knight | - | - | - | $50,639 | 116 | $1,580,482 | Jun 21 | United International Pictures | false |
| 18 | A Family Man | - | - | - | $44,621 | 42 | $44,621 | Aug 18 | Ster-Kinekor Pictures | false |
| 19 | The Lost City of Z | - | - | - | $43,679 | 26 | $45,191 | Aug 11 | Ster-Kinekor Pictures | false |
| 20 | The Mummy | - | - | - | $34,208 | 105 | $1,107,587 | Jun 9 | United International Pictures | false |
| 21 | Van der Merwe | - | - | - | $26,245 | 50 | $44,697 | Jul 28 | Ster-Kinekor Pictures | false |
| 22 | Detroit | - | - | - | $26,018 | 37 | $26,257 | Aug 18 | United International Pictures | false |
| 23 | Mubarakan | - | - | - | $24,623 | 11 | $45,706 | Jul 28 | Sony Pictures Releasing | false |
| 24 | 2:22 | - | - | - | $20,639 | 25 | $34,720 | Aug 25 | Times Media Films | false |
| 25 | My Cousin Rachel | - | - | - | $20,605 | 9 | $32,895 | Aug 11 | Times Media Films | false |
| 26 | Paris Can Wait | - | - | - | $14,150 | 14 | $150,361 | Jun 30 | Times Media Films | false |
| 27 | 10 Days in Sun City | - | - | - | $13,720 | 20 | $23,894 | Aug 25 | Times Media Films | false |
| 28 | Brimstone | - | - | - | $10,751 | 12 | $10,984 | Aug 4 | Ster-Kinekor Pictures | false |
| 29 | Below Her Mouth | - | - | - | $7,712 | 5 | $8,103 | Aug 11 | United International Pictures | false |
| 30 | Maudie | - | - | - | $7,406 | 5 | $25,579 | Aug 25 | Sony Pictures Releasing | false |
| 31 | The House | - | - | - | $5,827 | 52 | $253,528 | Jul 7 | Times Media Films | false |
| 32 | Everything, Everything | - | - | - | $5,656 | 36 | $249,403 | Jun 23 | Times Media Films | false |
| 33 | The Circle | - | - | - | $5,629 | 36 | $127,224 | Jul 14 | Ster-Kinekor Pictures | false |
| 34 | Nul is nie niks nie | - | - | - | $3,721 | 43 | $109,117 | Jul 7 | Indigenous Film Distribution | false |
| 35 | Finders Keepers | - | - | - | $2,613 | 13 | $2,613 | Aug 18 | Ster-Kinekor Pictures | false |
| 36 | Rough Night | - | - | - | $2,093 | 75 | $339,199 | Jun 15 | Sony Pictures Releasing | false |
| 37 | The Red Turtle | - | - | - | $1,314 | 3 | $6,365 | Jul 14 | United International Pictures | false |
| 38 | Churchill | - | - | - | $1,215 | 17 | $69,759 | Jul 7 | Ster-Kinekor Pictures | false |
